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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/shell/window_watcher.h"
#include "ash/launcher/launcher.h"
#include "ash/launcher/launcher_model.h"
#include "ash/shell.h"
#include "ash/shell_window_ids.h"
#include "ui/aura/root_window.h"
#include "ui/aura/window.h"
namespace ash {
namespace shell {
class WindowWatcher::WorkspaceWindowWatcher : public aura::WindowObserver {
public:
explicit WorkspaceWindowWatcher(WindowWatcher* watcher) : watcher_(watcher) {
watcher_->window_->AddObserver(this);
for (size_t i = 0; i < watcher_->window_->children().size(); ++i)
watcher_->window_->children()[i]->AddObserver(watcher_);
}
virtual ~WorkspaceWindowWatcher() {
watcher_->window_->RemoveObserver(this);
for (size_t i = 0; i < watcher_->window_->children().size(); ++i)
watcher_->window_->children()[i]->RemoveObserver(watcher_);
}
virtual void OnWindowAdded(aura::Window* new_window) OVERRIDE {
new_window->AddObserver(watcher_);
}
virtual void OnWillRemoveWindow(aura::Window* window) OVERRIDE {
DCHECK(window->children().empty());
window->RemoveObserver(watcher_);
}
private:
WindowWatcher* watcher_;
DISALLOW_COPY_AND_ASSIGN(WorkspaceWindowWatcher);
};
WindowWatcher::WindowWatcher()
: window_(Launcher::ForPrimaryDisplay()->window_container()),
panel_container_(ash::Shell::GetContainer(
window_->GetRootWindow(),
internal::kShellWindowId_PanelContainer)) {
workspace_window_watcher_.reset(new WorkspaceWindowWatcher(this));
panel_container_->AddObserver(this);
}
WindowWatcher::~WindowWatcher() {
panel_container_->RemoveObserver(this);
}
aura::Window* WindowWatcher::GetWindowByID(ash::LauncherID id) {
IDToWindow::const_iterator i = id_to_window_.find(id);
return i != id_to_window_.end() ? i->second : NULL;
}
ash::LauncherID WindowWatcher::GetIDByWindow(aura::Window* window) const {
for (IDToWindow::const_iterator i = id_to_window_.begin();
i != id_to_window_.end(); ++i) {
if (i->second == window)
return i->first;
}
return 0; // TODO: add a constant for this.
}
// aura::WindowObserver overrides:
void WindowWatcher::OnWindowAdded(aura::Window* new_window) {
if (new_window->type() != aura::client::WINDOW_TYPE_NORMAL &&
new_window->type() != aura::client::WINDOW_TYPE_PANEL)
return;
static int image_count = 0;
ash::LauncherModel* model = Launcher::ForPrimaryDisplay()->model();
ash::LauncherItem item;
item.type = ash::TYPE_TABBED;
id_to_window_[model->next_id()] = new_window;
SkBitmap icon_bitmap;
icon_bitmap.setConfig(SkBitmap::kARGB_8888_Config, 16, 16);
icon_bitmap.allocPixels();
icon_bitmap.eraseARGB(255,
image_count == 0 ? 255 : 0,
image_count == 1 ? 255 : 0,
image_count == 2 ? 255 : 0);
image_count = (image_count + 1) % 3;
item.image = gfx::ImageSkia(gfx::ImageSkiaRep(icon_bitmap,
ui::SCALE_FACTOR_100P));
model->Add(item);
}
void WindowWatcher::OnWillRemoveWindow(aura::Window* window) {
for (IDToWindow::iterator i = id_to_window_.begin();
i != id_to_window_.end(); ++i) {
if (i->second == window) {
ash::LauncherModel* model = Launcher::ForPrimaryDisplay()->model();
int index = model->ItemIndexByID(i->first);
DCHECK_NE(-1, index);
model->RemoveItemAt(index);
id_to_window_.erase(i);
break;
}
}
}
} // namespace shell
} // namespace ash
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